Me and a friend stayed at Pom's house for 3 months and had a wonderful time there. The house is situated in a very local neighbourhood, with great street food, a local market, sky train, and even a pool just around the house. It's only a few stations from the center of the city, but almost devoid of tourists, so you get a really authentic feel of Bangkok life.

The house has many rooms, I think 6 in total, with 3 or 4 available as bedrooms (depending how hot it is and if you need AC). When friends came to visit, we could sleep 5 people comfortably, with 4 people sharing two double beds. The setup is basic and no-frills. There's a rooftop that's great for evenings and cooler days.

Pom was very accommodating. She came to meet me on the first evening, and was always very helpful when something came up.
If you're looking for a less touristy option, with plenty of space, an authentic Bangkok neighbourhood experience, without fancy frills but with really good value, I would recommend this place very highly. I personally hope to be able to come back for a long duration next year.